#include "Protocol.hpp"
#include <iostream>

class Cal
{
public:
    Response Execute(Request& req)
    {
        Response resp(0, 0);
        switch(req.Oper())
        {
        case'+':
            resp.SetResult(req.X() + req.Y());
            break;
        case'-':
            resp.SetResult(req.X() - req.Y());
            break;
        case'*':
            resp.SetResult(req.X() * req.Y());
            break;
        case'/':
            if (req.Y() == 0)
            {
                resp.SetCode(1); // 1除零错误
            }
            else
            {
                resp.SetResult(req.X() / req.Y());
            }
            break;
         case '%':
            {
                if (req.Y() == 0)
                {
                    resp.SetCode(2); // 2 mod 0 错误
                }
                else
                {
                    resp.SetResult(req.X() % req.Y());
                }
            }
            break;
        default:
                resp.SetCode(3); // 非法操作
                break;
            
        }
                
        return resp;
    }

};

